Draft-rigging.



the Weeber the eot'zer or other retaining means tence to e. greeter nun connect the elieelz--pletes to oit rivets to ie draft tbe-n were formerly usent iis inrrm ,n 'tlie number olf ri ets lies, noweif'er, Caused greet rliil'ieillty t it is etten impossible tbe riret lieiulf Witli reference slots es to prevent tlieseine from 'in pjitli oit' trnrel of the nenni of wzislioi; To ob inte llie von tinnel Weir bieb .ionlfi reeult rom tlie inter-'terence between the loon er enti the rivet lien it 1 been ei einer-y' to eitlier oirit "l f these 'pointe or to llispensff: `witli i lllitlier of these je ,ients very detrimental to the ruft rigging, sinne the first renders nsf; ess the provision iannle for ncidtioiml lt ening ineens, anni ond allons the il vft lfey e wide renge interni, nim/ement wi'tli tiie eonseqnent lin-r ,f by direct contact Witn tbe sills olf toe netter of cutting or closing the .se-nie, in n'bicir event tile is liable 'to become ileteebefl from tbe ver., with disastrous resuits.

The nld .form oi loop washer being loose on tbe key is often oreefl by the lateral movement of the key against the legs oi the vetter Willi suiiieient force to elose the se :rml should the netter become Closed it Ywill rellene@ is opt-ly illustrated in Fig. l of the drawings, attention. being directed to the position of the Washers on the keys 17 and 19. It Will else be noted that the Washer E21 is of suoli wicltb with reference to the Cotter pin that 'when the legs ofthe Cotter are spread, as sliown clearly in Fig. 2l in order to retain tbe Cotter in position it will be impossible by lateral movement of the key to bring either leg of the Cotter into Contact with the adje- Cent sill, hence all (langer of lateral movement of tlie key closing the Cotter is avoided.

llaving new fully described tlie invention, iltliou gli it will. be noted that the terms used :ire used in their descriptive and not in their limiting sense, what I claim is:

L The combination With draft sills lieving :illned slots therein, of a draft rigging involving :i coupler, :i follower end cushioning mechanism, a key extending through li'ey, seid key being Aedeted to extend through slots in. the seid, sil s, nieens'for retraining seid key in position` said means involving e member whose greatest length is less than the maximum transverse4 diameter the seid key end e fastening means :iizipted to operatively eonneet Said member end l-zey, the seid member being adapted to werent contact between the fastening nnaans nml one of the seid. sills.

ln testimony whereof l eiiix my signature.

DONALD S. BARROVVS. 

